厄瓜多尔奥连特盆地斜坡带地震多属性储层预测
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摘要
南美安第斯前陆盆地斜坡带主要含油气圈闭为低幅度构造-岩性圈闭,储层预测是厄瓜多尔奥连特盆地低幅度隐蔽圈闭识别和描述的重要环节。为了准确预测储层砂体及油藏空间分布特征,采用高品质3D地震资料,沿层提取包括AVO信息在内的多种地震属性参数,利用地震属性和已知井的地层物性参数建立统计对应关系,并利用这一关系预测了未知点地层的储层物性、砂岩储层空间分布特征和储层含油气性特征预测。结果表明:预测结果与已有钻井吻合程度较高;下一步勘探潜力区位于区块南部和西部。
Low-relief structural-lithologic trap is dominant in slope of Andes foreland basin of South America.Reservoir prediction is very important for detection and description of low-relief subtle trap in Oriente basin of Ecuador.High-quality 3D seismic data is used to accurately predict spatial distribution of sand and reservoir.The method is,extracting inter-layer seismic attribute parameters,including AVO information;establishing statistical correspondence between the group of seismic attribute parameters and the borehole information for predicting the reservoir physical property.The sand distribution in three dimensions and hydrocarbon bearing characteristics can be predicted in the area without wells.The prediction results match wells fairly good.Next potential region should be in the southern part and the western part of this area.
Low-relief structural-lithologic trap is dominant in slope of Andes foreland basin of South America.Reservoir prediction is very important for detection and description of low-relief subtle trap in Oriente basin of Ecuador.High-quality 3D seismic data is used to accurately predict spatial distribution of sand and reservoir.The method is,extracting inter-layer seismic attribute parameters,including AVO information;establishing statistical correspondence between the group of seismic attribute parameters and the borehole information for predicting the reservoir physical property.The sand distribution in three dimensions and hydrocarbon bearing characteristics can be predicted in the area without wells.The prediction results match wells fairly good.Next potential region should be in the southern part and the western part of this area.
引文
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[8]田新琦,魏春光,何雨丹,等.前陆盆地斜坡带低幅度构造地球物理识别技术[J].地球物理学进展,2009,24(5):1794-1800.TIAN Xin-qi,WEI Chun-guang,HE Yu-dan,et al.Geo-physical technique for detecting low-relief trap on theslope of foreland basin[J].Progress in Geophysics,2009,24(5):1794-1800.
[9]Balkwill H R,Rodrigue F I,Paredes J P,et al.Northernpart of Oriente basin,Ecuador,reflection seismic expres-sion of structures[J].AAPG Memoir,1995,62:559-571.
[10]邸秀莲.茨榆坨斜坡带中南段岩性油气藏勘探研究[J].断块油气田,2008,15(2):20-22.DI Xiu-lian.Study on exploration of lithological hydro-carbon reservoir in middle-south member of Ciyutuoslope belt[J].Fault-Block Oil&Gas Field,2008,15(2):20-22.
[2]Dashwood M F,Abbotts I L.Aspects of the petroleum ge-ology of the Oriente basin,Ecuador[J].Geologic SocietySpecial Publication,1990,50:89-117.
[3]邹新宁,孙卫,张盟勃,等.地震属性分析在岩性气藏描述中的应用[J].吉林大学学报:地球科学版,2006,36(2):289-294.ZOU Xin-ning,SUN Wei,ZHANG Meng-bo,et al.The ap-plication of seismic attributes analysis to lithologic gasreservoir description[J].Journal of Jilin University:EarthScience Edition,2006,36(2):289-294.
[4]李喜安,吴少波,谭成仟,等.卡拉高莱斯油田U油组储层特征及其评价[J].西安工程学院学报,2002,24(3):37-40.LI Xi-an,WU Shao-bo,TAN Cheng-qian,et al.Reservoircharacteristic and evaluation of Group U in the Caracolesoil field[J].Journal of Xi’an Engineering University,2002,24(3):37-40.
[5]吴媚,符力耘,李维新.高分辨率非线性储层物性参数反演方法和应用[J].地球物理学报,2008,51(2):546-557.WU Mei,FU Li-yun,LI Wei-xin.A high-resolution non-linear inversion method of reservoir parameters and its ap-plication to oil/gas exploration[J].Chinese Journal ofGeophysics,2008,51(2):546-557.
[6]魏友华,郭科,陈聆,等.信息融合在复杂油气储层物性参数综合研究中的应用[J].地球物理学进展,2008,23(1):153-156.WEI You-hua,GUO Ke,CHEN Ling,et al.The applica-tion of data fusion in the research of physic parameters ofcomplicated oil-gas reservoir[J].Progress in Geophysics,2008,23(1):153-156.
[7]郭睿,赵丽敏,褚人杰,等.委内瑞拉卡拉高莱斯合同区疑难储层测井识别方法[J].测井技术,2004,28(4):292-295.GUO Rui,ZHAO Li-min,ZHU Ren-jie,et al.Loggingidentification method of doubtful oil layers in Caracolescontract area,Venezuela[J].Well Logging Technology,2004,28(4):292-295.
[8]田新琦,魏春光,何雨丹,等.前陆盆地斜坡带低幅度构造地球物理识别技术[J].地球物理学进展,2009,24(5):1794-1800.TIAN Xin-qi,WEI Chun-guang,HE Yu-dan,et al.Geo-physical technique for detecting low-relief trap on theslope of foreland basin[J].Progress in Geophysics,2009,24(5):1794-1800.
[9]Balkwill H R,Rodrigue F I,Paredes J P,et al.Northernpart of Oriente basin,Ecuador,reflection seismic expres-sion of structures[J].AAPG Memoir,1995,62:559-571.
[10]邸秀莲.茨榆坨斜坡带中南段岩性油气藏勘探研究[J].断块油气田,2008,15(2):20-22.DI Xiu-lian.Study on exploration of lithological hydro-carbon reservoir in middle-south member of Ciyutuoslope belt[J].Fault-Block Oil&Gas Field,2008,15(2):20-22.
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